Pith Number

pith:26CBKFBY

pith:2015:26CBKFBYMUQCHAYUAMZFQBGYD7

not attested not anchored not stored refs pending

Principles Weaker than BD-N

Hannes Diener, Robert S. Lubarsky

arxiv:1510.02139 v1 · 2015-10-07 · math.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26CBKFBYMUQCHAYUAMZFQBGYD7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:30:44.664037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d784151438652023831403325804d81fe3d7f639c9c5a23cfa30b7be047a64ca

Aliases

arxiv: 1510.02139 · arxiv_version: 1510.02139v1 · doi: 10.48550/arxiv.1510.02139 · pith_short_12: 26CBKFBYMUQC · pith_short_16: 26CBKFBYMUQCHAYU · pith_short_8: 26CBKFBY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/26CBKFBYMUQCHAYUAMZFQBGYD7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d784151438652023831403325804d81fe3d7f639c9c5a23cfa30b7be047a64ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1433f03680c3965428d0e1961f937a26689d9a757e1fb2d25be1ce87fb336f93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-10-07T21:29:06Z",
    "title_canon_sha256": "7b01d69551c9b275f590ef281274b97e8f6a8f9218b2d25148cea181acabfb23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02139",
    "kind": "arxiv",
    "version": 1
  }
}